A- 3 B and 6 G. Why?
Look at the 1st row : BBB and the result: 3/9.2/8.1/7.
The question related to the answer (although not written), is : Find the probability of selecting 3 bleues RESPECTIVELY from the bag without REPLACEMENT, Since the Probability of the first choice =(favorable event/output)]/[(Total event/output)]
Favorable = 3 Blue & Total = 9.P(1st choice) = 3/9. Hope you got it